Uses of Interface
org.apache.hadoop.fs.statistics.IOStatistics

Packages that use IOStatistics

Package	Description
org.apache.hadoop.crypto	Crypto related classes.
org.apache.hadoop.fs	An abstract file system API.
org.apache.hadoop.fs.statistics	This package contains support for statistic collection and reporting.
org.apache.hadoop.fs.statistics.impl	Implementation support for statistics.
org.apache.hadoop.io.compress
org.apache.hadoop.util	Common utilities.
org.apache.hadoop.util.functional	Support for functional programming within the Hadoop APIs.

Uses of IOStatistics in org.apache.hadoop.crypto

Methods in org.apache.hadoop.crypto that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	CryptoInputStream.getIOStatistics()
IOStatistics	CryptoOutputStream.getIOStatistics()

Uses of IOStatistics in org.apache.hadoop.fs

Methods in org.apache.hadoop.fs that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	BufferedFSInputStream.getIOStatistics()
IOStatistics	FSDataInputStream.getIOStatistics()	Get the IO Statistics of the nested stream, falling back to null if the stream does not implement the interface IOStatisticsSource.
IOStatistics	FSDataOutputStream.getIOStatistics()	Get the IO Statistics of the nested stream, falling back to empty statistics if the stream does not implement the interface IOStatisticsSource.

Uses of IOStatistics in org.apache.hadoop.fs.statistics

Subinterfaces of IOStatistics in org.apache.hadoop.fs.statistics

Modifier and Type	Interface	Description
interface	IOStatisticsSetters	Setter for IOStatistics entries.

Classes in org.apache.hadoop.fs.statistics that implement IOStatistics

Modifier and Type	Class	Description
final class	IOStatisticsSnapshot	Snapshot of statistics from a different source.

Methods in org.apache.hadoop.fs.statistics that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	BufferedIOStatisticsInputStream.getIOStatistics()	Return any IOStatistics offered by the inner stream.
IOStatistics	BufferedIOStatisticsOutputStream.getIOStatistics()	Ask the inner stream for their IOStatistics.
default IOStatistics	IOStatisticsSource.getIOStatistics()	Return a statistics instance.
static IOStatistics	IOStatisticsSupport.retrieveIOStatistics(Object source)	Get the IOStatistics of the source, casting it if it is of the relevant type, otherwise, if it implements IOStatisticsSource extracting the value.

Methods in org.apache.hadoop.fs.statistics with parameters of type IOStatistics

Modifier and Type	Method	Description
boolean	IOStatisticsAggregator.aggregate(IOStatistics statistics)	Aggregate the supplied statistics into the current set.
boolean	IOStatisticsSnapshot.aggregate(IOStatistics source)	Aggregate the current statistics with the source reference passed in.
static Object	IOStatisticsLogging.demandStringifyIOStatistics(IOStatistics statistics)	On demand stringifier of an IOStatistics instance.
static DurationStatisticSummary	DurationStatisticSummary.fetchDurationSummary(IOStatistics source, String key, boolean success)	Fetch the duration timing summary of success or failure operations from an IO Statistics source.
static DurationStatisticSummary	DurationStatisticSummary.fetchSuccessSummary(IOStatistics source, String key)	Fetch the duration timing summary from an IOStatistics source.
static String	IOStatisticsLogging.ioStatisticsToPrettyString(IOStatistics statistics)	Convert IOStatistics to a string form, with all the metrics sorted and empty value stripped.
static String	IOStatisticsLogging.ioStatisticsToString(IOStatistics statistics)	Convert IOStatistics to a string form.
void	IOStatisticsSnapshot.snapshot(IOStatistics source)	Take a snapshot.
static IOStatisticsSnapshot	IOStatisticsSupport.snapshotIOStatistics(IOStatistics statistics)	Take a snapshot of the current statistics state.

Constructors in org.apache.hadoop.fs.statistics with parameters of type IOStatistics

Modifier	Constructor	Description
	IOStatisticsSnapshot(IOStatistics source)	Construct, taking a snapshot of the source statistics data if the source is non-null.

Uses of IOStatistics in org.apache.hadoop.fs.statistics.impl

Subinterfaces of IOStatistics in org.apache.hadoop.fs.statistics.impl

Modifier and Type	Interface	Description
interface	IOStatisticsStore	Interface of an IOStatistics store intended for use in classes which track statistics for reporting.

Classes in org.apache.hadoop.fs.statistics.impl that implement IOStatistics

Modifier and Type	Class	Description
class	AbstractIOStatisticsImpl	Base implementation in case common methods/fields need to be added in future.
class	ForwardingIOStatisticsStore	This may seem odd having an IOStatisticsStore which does nothing but forward to a wrapped store, but it's designed to assist in subclassing of selective methods, such as those to increment counters, get durations etc.
class	WrappedIOStatistics	Wrap IOStatistics source with another (dynamic) wrapper.

Methods in org.apache.hadoop.fs.statistics.impl that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	DynamicIOStatisticsBuilder.build()	Build the IOStatistics instance.
static IOStatistics	IOStatisticsBinding.emptyStatistics()	Get the shared instance of the immutable empty statistics object.
static IOStatistics	IOStatisticsBinding.fromStorageStatistics(StorageStatistics storageStatistics)	Create IOStatistics from a storage statistics instance.
IOStatistics	IOStatisticsContextImpl.getIOStatistics()
IOStatistics	SourceWrappedStatistics.getIOStatistics()
protected IOStatistics	WrappedIOStatistics.getWrapped()	Get at the wrapped inner statistics.

Methods in org.apache.hadoop.fs.statistics.impl with parameters of type IOStatistics

Modifier and Type	Method	Description
boolean	ForwardingIOStatisticsStore.aggregate(IOStatistics statistics)
static StorageStatistics	IOStatisticsBinding.publishAsStorageStatistics(String name, String scheme, IOStatistics source)	Publish the IOStatistics as a set of storage statistics.
protected void	WrappedIOStatistics.setWrapped(IOStatistics wrapped)	Set the wrapped statistics.
static IOStatisticsSource	IOStatisticsBinding.wrap(IOStatistics statistics)	Take an IOStatistics instance and wrap it in a source.

Constructors in org.apache.hadoop.fs.statistics.impl with parameters of type IOStatistics

Modifier	Constructor	Description
	SourceWrappedStatistics(IOStatistics source)	Constructor.
	StorageStatisticsFromIOStatistics(String name, String scheme, IOStatistics ioStatistics)	Instantiate.
	WrappedIOStatistics(IOStatistics wrapped)	Instantiate.

Uses of IOStatistics in org.apache.hadoop.io.compress

Methods in org.apache.hadoop.io.compress that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	CompressionInputStream.getIOStatistics()	Return any IOStatistics provided by the underlying stream.
IOStatistics	CompressionOutputStream.getIOStatistics()	Return any IOStatistics provided by the underlying stream.

Uses of IOStatistics in org.apache.hadoop.util

Methods in org.apache.hadoop.util that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	LineReader.getIOStatistics()	Return any IOStatistics provided by the source.

Uses of IOStatistics in org.apache.hadoop.util.functional

Methods in org.apache.hadoop.util.functional that return IOStatistics

Modifier and Type	Method	Description
IOStatistics	RemoteIterators.WrappingRemoteIterator.getIOStatistics()